Hitung Pedagang (java)

import java.util.*;
/*class pedagang

double hrgBeli;
double hrgJual;

void htgLaba()
{
double Laba(double hrgJual, double hrgBeli)
{
for(Laba = hrgJual > hrgBeli)
}
}
void htgRugi()
{
double Rugi(double hrgJual, double hrgBeli)
{
for(Laba = hrgJual < hrgBeli)
}

}
void htgKeuntungan()
{
double Keuntungan(double Laba, double Rugi)
{
Keuntungan = htgLaba() - htgRugi();
System.out.println("Besar Keuntungan=RP. "+)
}


class infoPedagang
{
static Scanner masukan = new Scanner(System.in);
public static void main(String args[])
{
pedagang dataku= new pedagang();
system.out.println("Masukan Harga Beli :RP. ");
dataku.hrgBeli = masukan.nextDouble();
System.out.println("Masukan harga Jual :Rp. ");
dataku.hrgJual = masukan.nextDouble();
}
}*/

class pedagang
{
static Scanner masukan = new Scanner(System.in);
public static void main(String args[])
{
double hrgBeli[] = new double[2];
double hrgJual[] = new double[2];
double Laba[] = new double[2];
double Rugi[] = new double[2];

int j=0;
int k=0;
double JLaba = 0;
double JRugi = 0;
for(int i=0; i<2; i++)
{
System.out.print("Harga Beli ke-" +i +"=");
hrgBeli[i] = masukan.nextDouble();
System.out.print("Harga Jual ke-" +i +"=");
hrgJual[i] = masukan.nextDouble();
if(hrgBeli[i] < hrgJual[i])
{
Laba[j] = hrgJual[i] - hrgBeli[i];
JLaba +=Laba[j];
j++;
}
else
{
Rugi[k] = hrgBeli[i] - hrgJual[i];
JRugi +=Rugi[k];
k++;
}


}
double Keuntungan = JLaba - JRugi;
System.out.println("jumlah Keuntungan =Rp." + Keuntungan);
}

}